JP3498247B1 - Flexible structure - Google Patents

Flexible structure

Info

Publication number
JP3498247B1
JP3498247B1 JP2002315940A JP2002315940A JP3498247B1 JP 3498247 B1 JP3498247 B1 JP 3498247B1 JP 2002315940 A JP2002315940 A JP 2002315940A JP 2002315940 A JP2002315940 A JP 2002315940A JP 3498247 B1 JP3498247 B1 JP 3498247B1
Authority
JP
Japan
Prior art keywords
shaped groove
bellows
flexible
longitudinal direction
linear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2002315940A
Other languages
Japanese (ja)
Other versions
JP2004150109A (en
Inventor
俊夫 鎌田
高栄 寺沢
Original Assignee
俊夫 鎌田
高栄 寺沢
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 俊夫 鎌田, 高栄 寺沢 filed Critical 俊夫 鎌田
Priority to JP2002315940A priority Critical patent/JP3498247B1/en
Application granted granted Critical
Publication of JP3498247B1 publication Critical patent/JP3498247B1/en
Publication of JP2004150109A publication Critical patent/JP2004150109A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Joints Allowing Movement (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

【要約】 【課題】農業用及び工業用水路及び排水路等において、
水の向きを変える箇所に用いることができる構造体であ
って、接続後の隣接U字溝との接続部からの水漏れが極
めて生じ難く、さらに埋設箇所の曲がり具合に応じた種
々の方向への彎曲が可能である利点を有しつつ、流水の
外部への飛散を効果的に防止し、かつ、周囲の土圧荷重
に対する剛性が高い可撓性を有する構造体の提供。 【解決手段】水流の向きを変える位置に設置使用される
構造体であって、硬質合成樹脂又は繊維強化樹脂からな
る筒状体であって、少なくともその一部において、内外
周壁の実質全体にわたって延びる山部及び谷部が交互に
該筒状体4の長手方向に連続形成されることにより、可
撓性蛇腹状部5を備えてなることを特徴とする、可撓性
を有する構造体1。
Abstract: [PROBLEMS] In agricultural and industrial waterways and drainage channels,
A structure that can be used in locations where the direction of water is changed. It is extremely unlikely that water will leak from the connection with the adjacent U-shaped groove after connection, and furthermore, in various directions according to the degree of bending of the buried location. Provided is a flexible structure having the advantage of being able to bend, effectively preventing splashing of flowing water to the outside, and having high rigidity against surrounding earth pressure loads. The structure is installed and used at a position where the direction of a water flow is changed, and is a cylindrical body made of a hard synthetic resin or a fiber reinforced resin, and at least partially extends over substantially the entire inner and outer peripheral walls. A flexible structure 1 comprising a flexible bellows-shaped portion 5 in which a peak portion and a valley portion are alternately formed continuously in the longitudinal direction of the tubular body 4.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、農業用及び工業用
水路及び排水路、並びに一般土木用水路及び排水路にお
いて、種々の方向に曲げることが可能な可撓性を有する
構造体に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible structure which can be bent in various directions in agricultural and industrial waterways and drainages, and general civil engineering waterways and drains.

【0002】[0002]

【従来の技術】一般に、U字溝を埋設すべき箇所は通常
の平坦地に限らず、山野等の傾斜地にも及び、その箇所
は左右への彎曲の他、上下方向へと傾斜していく場合
や、さらには、左右に彎曲しつつ上下方向へと傾斜する
等、複雑な曲がり方をしている場合もある。従来、真っ
直ぐに延びる埋設箇所にあっては、直線形U字溝が割り
当てられる一方、かように彎曲した埋設箇所つまり、直
線形U字溝とその次に接続する直線形U字溝との間につ
いては、コンクリートの打ち込みで作られた構造体で補
う方法、又は所定の曲り角度を有する曲り継手を準備し
これを用いて曲がり箇所の水路を形成するという手法が
とられてきた。しかし、前者は作業工程が煩雑であり、
また後者の場合においては、既存の曲り継手は90°も
しくは45°といった特定の曲り角度を有するものしか
存在しない為、対応できる角度にも限度があった。例え
ば埋設現場での曲り角度が特定の曲り角度と数度異なる
だけで、その特定の曲り角度をもつ曲り継手はその埋設
現場に適用できなかった。その為、種々の角度に彎曲し
た曲り継手をあらかじめ成形しておき、埋設箇所の彎曲
の具合に応じた曲り継手を選択して使用することも考え
られたが、その場合、非常に多種の型枠を作製する必要
が生じ、生産効率の面で非常に不都合であった。そこ
で、かような問題点を克服する為、埋設箇所の曲がり角
度に応じて、それ自体の曲がり角度を調節することがで
きるU字溝の開発が進められてきた。
2. Description of the Related Art Generally, the place where the U-shaped groove is to be buried is not limited to an ordinary flat ground, but also to a sloping ground such as a mountain field. In some cases, moreover, it may have a complicated bend such as bending to the left and right while inclining in the vertical direction. Conventionally, a straight U-shaped groove is assigned to a straightly extending buried portion, while a curved U-shaped groove, that is, between a straight U-shaped groove and a straight-line U-shaped groove to be connected next is allocated. As for the method, a method of supplementing with a structure made by driving concrete, or a method of preparing a bending joint having a predetermined bending angle and using this to form a waterway at a bending point has been used. However, the former has a complicated work process,
In the latter case, the existing bending joint has only a certain bending angle such as 90 ° or 45 °, so that there is a limit to the angle that can be supported. For example, the bending angle at the burial site differs from the specific bending angle only by several degrees, and the bending joint having the specific bending angle cannot be applied to the burying site. Therefore, it is considered that the bending joints bent at various angles are preformed, and the bending joints are selected and used according to the bending condition of the embedding place. It was necessary to manufacture a frame, which was very inconvenient in terms of production efficiency. Therefore, in order to overcome such a problem, development of a U-shaped groove has been promoted in which the bending angle of the buried portion can be adjusted according to the bending angle of the buried portion.

【0003】例えば、実公平7−52225号公報は、
曲り箇所にU形溝部材を曲げて接続できるようにすべ
く、底壁とその底壁の両側に立ち上げられた側壁とを有
するU形溝部材本体の一端部においてその両側壁を外側
に円弧状に張り出させることによりU形溝部材本体の一
端部にその他端部に対応する外嵌合部が構成されてお
り、その外嵌合部の底壁と上記他端部の底壁とに互いに
回転自在に嵌合可能な凹部と凸部とが各別に設けられ、
上記外嵌合部における円弧状の張出部の曲率中心が、上
記凹部と凸部との嵌合箇所に設定されていることを特徴
とするU形溝部材を開示している。
For example, Japanese Utility Model Publication No. 7-52225 discloses that
In order to be able to bend and connect the U-shaped groove member to the bent portion, at the one end of the U-shaped groove member main body having a bottom wall and side walls raised on both sides of the bottom wall, the both side walls are circled outward. An outer fitting portion corresponding to the other end portion is formed at one end portion of the U-shaped groove member main body by projecting in an arc shape, and the bottom wall of the outer fitting portion and the bottom wall of the other end portion are formed. A concave portion and a convex portion that can be rotatably fitted to each other are provided separately,
Disclosed is a U-shaped groove member, characterized in that the center of curvature of the arcuate overhanging portion in the outer fitting portion is set at the fitting portion between the concave portion and the convex portion.

【0004】しかし、実公平7−52225号公報が開
示するU字溝部材は、外嵌合部の底壁に設けられた凸部
を中心として、他方のU字溝部材が所定の角度の範囲内
で回転し得るものである為、左右に曲げるには適した構
造をとっているが、反対に上下に曲げるには自由度が非
常に低い。また、経時的使用により外嵌合部の底壁とこ
れに嵌合する他端部の底壁との間に隙間が生じ易く、し
たがって、その隙間より水漏れが発生するおそれがある
という問題があった。
However, in the U-shaped groove member disclosed in Japanese Utility Model Publication No. 7-52225, the other U-shaped groove member has a predetermined angle range around the convex portion provided on the bottom wall of the outer fitting portion. Since it can rotate inside, it has a structure suitable for bending to the left and right, but on the contrary, it has very low freedom to bend up and down. In addition, there is a problem that a gap is likely to be formed between the bottom wall of the outer fitting portion and the bottom wall of the other end portion fitted to the outer fitting portion due to use over time, and therefore water leakage may occur from the gap. there were.

【0005】[0005]

【特許文献1】実公平7−52225号公報[Patent Document 1] Japanese Utility Model Publication No. 7-52225

【0006】[0006]

【発明が解決しようとする課題】そこで本発明者は、か
かる問題を解決する為に、断面略U字形状をなし、その
底部から左右の側部に延びる山部及び谷部が交互に溝の
長手方向に連続形成されてなる可撓性蛇腹状部を備えて
なるU字溝をまず案出した。該可撓性U字溝は任意の角
度での埋設が可能であって、直線形U字溝との接続後に
おいては、その接続部の安定性が高く、水漏れを起こす
おそれが非常に少ないという点において、上記問題を解
決するに十分に有効な手段と成り得ると考えられる。し
かしながらその一方で、該可撓性U字溝を埋設すべき箇
所が上下方向又は左右及び上下方向に彎曲しており、そ
のような場所に該可撓性U字溝が埋設された場合、前記
U字溝内を流れる水の一部がその彎曲部分を曲がり切れ
ずに、前記U字溝の上部から外へと飛散するという現象
が生じ得る。これを放置すれば、飛散した水が前記U字
溝周辺の土壌を侵食して埋設された前記U字溝との間に
間隙をつくり、ひいては前記U字溝の浮上を導いてしま
う。さらには、土圧荷重に対する蛇腹状部の剛性につい
てもさらなる改良の余地がまだ残されている。
Therefore, in order to solve such a problem, the present inventor has a U-shaped cross section, and the peaks and valleys extending from the bottom to the left and right sides alternately form grooves. First, a U-shaped groove having a flexible bellows portion continuously formed in the longitudinal direction was devised. The flexible U-shaped groove can be embedded at an arbitrary angle, and after connection with the linear U-shaped groove, the stability of the connecting portion is high and water leakage is very unlikely to occur. In this respect, it is considered to be a sufficiently effective means for solving the above problem. On the other hand, on the other hand, the portion where the flexible U-shaped groove is to be embedded is bent in the up-down direction or in the left-right direction and the up-down direction, and when the flexible U-shaped groove is embedded in such a location, A phenomenon may occur in which a part of the water flowing in the U-shaped groove does not bend in the curved portion and is scattered from the upper portion of the U-shaped groove to the outside. If left unattended, the scattered water will erode the soil around the U-shaped groove to form a gap with the buried U-shaped groove, and eventually lead to the floating of the U-shaped groove. Furthermore, there is still room for further improvement in the rigidity of the bellows portion against earth pressure load.

【0007】[0007]

【課題を解決するための手段】本発明は、上記課題に鑑
みなされたものであって、その目的とするところは、接
続後の隣接U字溝との接続部からの水漏れが極めて生じ
難く、さらに埋設箇所の曲がり具合に応じた種々の方向
への彎曲が可能である利点を有し、かつ流水の外部への
飛散を効果的に防止し、かつ、周囲の土圧荷重に対する
剛性が高い可撓性を有する構造体の提供である。すなわ
ち本発明は、波形が長手方向に連続形成された上流側の
直線形U字溝と下流側の該直線形U字溝とを接続する為
に用いられる、水流の向きを変える位置に設置使用され
る構造体であって、硬質合成樹脂又は繊維強化樹脂から
なる筒状体であって、少なくともその一部において、内
外周壁の実質全体にわたって延びる山部及び谷部が交互
に該筒状体の長手方向に連続形成されることにより、可
撓性蛇腹状部を備え、かつ、該蛇腹状部の上流側及び下
流側に、波形が長手方向に連続形成された直線形U字溝
の端部と嵌合する雌型接続部及び雄型接続部を、該蛇腹
状部と連なって一体に成形してなることを特徴とする、
直線形U字溝との接続の為の可撓性を有する構造体に関
する。上記筒状体は、周壁が一周にわたって連続する完
全な筒状体でなくとも、つまり周壁のうち頂部について
切り欠かれた不完全な筒状体であっても、本発明の所定
の目的を事実上達成することができる。したがって、本
発明は別の態様として、波形が長手方向に連続形成され
た上流側の直線形U字溝と下流側の該直線形U字溝とを
接続する為に用いられる、水流の向きを変える位置に設
置使用される構造体であって、硬質合成樹脂又は繊維強
化樹脂からなる筒状体の長手方向に延びる頂部の一部又
は全部が切り欠かれた切り欠き筒状体であって、少なく
ともその一部において、内外周壁の実質全体にわたって
延びる山部及び谷部が交互に該切り欠き筒状体の長手方
向に連続形成されることにより、可撓性蛇腹状部を備
え、かつ、該蛇腹状部の上流側及び下流側に、波形が長
手方向に連続形成された直線形U字溝の端部と嵌合する
雌型接続部及び雄型接続部を、該蛇腹状部と連なって一
体に成形してなることを特徴とする、直線形U字溝との
接続の為の可撓性を有する構造体にも関する。
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention that water leakage from a connecting portion with an adjacent U-shaped groove after connection is extremely unlikely to occur. In addition, it has the advantage that it can be bent in various directions according to the degree of bending of the buried part, effectively prevents the running water from splashing outside, and has high rigidity against the surrounding earth pressure load. The purpose of the present invention is to provide a structure having flexibility. That is, the present invention is directed to the upstream side where corrugations are continuously formed in the longitudinal direction.
To connect the linear U-shaped groove and the linear U-shaped groove on the downstream side
A cylindrical body made of hard synthetic resin or fiber reinforced resin, which is installed at a position where the direction of water flow is changed, and extends over substantially the entire inner and outer peripheral walls at least at a part thereof. The peaks and the troughs are alternately formed continuously in the longitudinal direction of the tubular body to provide a flexible bellows portion, and the corrugations are provided in the longitudinal direction on the upstream side and the downstream side of the bellows portion. Characterized in that a female type connecting portion and a male type connecting portion that are fitted to the end of the linear U-shaped groove continuously formed are continuously formed integrally with the bellows-like portion.
The present invention relates to a flexible structure for connection with a linear U-shaped groove . Even if the tubular body is not a perfect tubular body whose peripheral wall is continuous over one round, that is, even if the tubular body is an incomplete tubular body cut out at the top portion of the peripheral wall, the predetermined object of the present invention can be achieved. Can be achieved over. Therefore, in another aspect of the present invention, the corrugations are continuously formed in the longitudinal direction.
The upstream linear U-shaped groove and the downstream linear U-shaped groove
A structure used for connection and installed at a position where the direction of water flow is changed, and a part or all of the top extending in the longitudinal direction of a cylindrical body made of hard synthetic resin or fiber reinforced resin is notched. In the cut-out tubular body, at least a part thereof, peaks and valleys extending over substantially the entire inner and outer peripheral wall are alternately formed continuously in the longitudinal direction of the cut-out tubular body. A female type connecting portion and a male type portion which are provided with a flexible bellows portion and which are fitted to the ends of a straight U-shaped groove in which a corrugation is continuously formed in the longitudinal direction on the upstream side and the downstream side of the bellows portion. A linear U-shaped groove , characterized in that the connecting portion is formed integrally with the bellows-shaped portion in a continuous manner.
It also relates to a flexible structure for connection .

【0008】本発明の可撓性を有する構造体の特徴は、
筒状体であって、少なくともその一部において、内外周
壁の実質全体にわたって延びる、筒状体の内方に突出す
る山部及び外方に突出する谷部が交互に該筒状体の長手
方向に連続形成されてなる可撓性蛇腹状部を有すること
にある。この蛇腹状部は筒状体の内壁の全体にわたって
形成された状態となっているので、本発明の構造体を任
意の方向に彎曲することを可能にする機能を果たしてい
る。この為、例えば、埋設箇所が左右に彎曲すると共に
上下方向に向かって傾斜する等複雑な曲がり方をしてい
る場合であっても、上下左右の方向に自由自在にそして
目的の角度に彎曲することが可能である。本構造体を複
数個連結してもよく、或いは直線形U字溝と組み合わせ
て使用してもよい。その上、該蛇腹状部が筒状の構造を
なす為、左右又は下方に急な角度で彎曲した埋設箇所に
おいても、上部が開いた断面略U字形状の蛇腹状部をも
つ可撓性U字溝とは異なって、曲がりきれなくなった水
の一部が前記U字溝の上部から外へと飛散することな
く、全流量の水を有効に流し通すことができる。したが
って飛散した水が周囲の土壌を侵食して構造体と土壌と
の間に間隙を生じ、もって構造体の浮上の原因となって
しまうおそれもない。本構造体が上記可撓性U字溝に比
較して有益な他の点は、水の飛散防止のみならず蛇腹状
部の剛性が向上されていることにある。従来の上部が開
いた構造の断面略U字形状のU字溝においては、左右の
側部の特に上部は、本構造体の外方から内方に向かって
作用する土圧荷重によって内方へと局部変形又はねじれ
変形してしまう可能性があるが、本構造体の蛇腹状部は
筒状体であり、いわばU字溝の左右の側壁部のそれぞれ
の上部が連続して一体に結合されているような構造であ
る為、前述の土圧荷重が作用したとしても、内外周壁の
内方への局部変形又はねじれ変形を非常に有効に防止し
得る。本構造体の蛇腹状部は筒形状をとれば良く、その
長手方向に対して直交する断面はどのような形状のもの
であっても構わない。例えば、断面略円形状である他、
断面略楕円形状、断面略四角形状、断面略六角形状もし
くは断面略八角形状等が挙げられ、また、長手方向にに
延びる山部及び谷部の形状は、通常の蛇腹状であること
はもちろん、可撓性部分としての機能を損なわない範囲
において、例えば断面波形状、或いは断面ジグザグ形状
であっても構わない。
The features of the flexible structure of the present invention are:
A tubular body, in which at least a part thereof, which extends over substantially the entire inner and outer peripheral wall, has inwardly projecting peaks and outwardly projecting troughs alternately arranged in the longitudinal direction of the tubular body. It has a flexible bellows portion formed continuously. Since the bellows-shaped portion is formed over the entire inner wall of the tubular body, it serves to bend the structure of the present invention in an arbitrary direction. Therefore, for example, even when the buried portion is curved left and right and has a complicated bending such as being inclined in the vertical direction, it can be freely bent in the vertical and horizontal directions and at a desired angle. It is possible. A plurality of the structures may be connected, or may be used in combination with a linear U-shaped groove. In addition, since the bellows-like portion has a tubular structure, the flexibility U having a bellows-like portion having a substantially U-shaped cross-section with an open top is provided even in a buried portion bent leftward or rightward at a steep angle. Unlike the U-shaped groove, the entire flow rate of water can be effectively flowed through without the part of the water that cannot be bent being scattered from the upper portion of the U-shaped groove to the outside. Therefore, there is no possibility that the scattered water will erode the surrounding soil to form a gap between the structure and the soil, which will cause the structure to float. Another advantage of the structure as compared with the flexible U-shaped groove is that not only the splash of water is prevented but also the rigidity of the bellows portion is improved. In the conventional U-shaped groove with a generally U-shaped cross-section having an open upper part, the left and right side parts, especially the upper part, are inwardly moved by the earth pressure load acting from the outside to the inside of the structure. However, the bellows-like portion of this structure is a tubular body, and so to speak, the upper portions of the left and right side wall portions of the U-shaped groove are connected continuously and integrally. Due to this structure, it is possible to very effectively prevent inward local deformation or twisting deformation of the inner and outer peripheral walls even if the above-mentioned earth pressure load acts. The bellows-shaped portion of the structure may have a tubular shape, and the cross section orthogonal to the longitudinal direction thereof may have any shape. For example, in addition to having a substantially circular cross section,
Examples thereof include a substantially elliptical cross section, a substantially square cross section, a substantially hexagonal cross section, or a substantially octagonal cross section, and the shape of the peaks and valleys extending in the longitudinal direction is, of course, a usual bellows shape. For example, a wavy cross section or a zigzag cross section may be used as long as the function of the flexible portion is not impaired.

【0009】また、本発明における好ましい態様の一つ
は、前述した形状の可撓性蛇腹状部を備えるとともに、
かつ、該蛇腹状部の上流側及び下流側に、波形が長手方
向に連続形成された直線形U字溝の端部と嵌合する雌型
接続部及び雄型接続部を、該蛇腹状部と連なって一体に
成形してなるところの可撓性の構造体である。前記蛇腹
状部は、前述したように本構造体を任意の方向に彎曲す
ることを可能にする機能を果たす。また、前記蛇腹状部
と連なって一体成形される雌型接続部及び雄型接続部
は、直線形U字溝とのもしくは本構造体との接続に際し
て嵌合され得るよう、適用されるU字溝の端部に対応し
た形状にそれぞれ成形される。そして、水の流れに対し
て上流側となる端部に形成された雌型接続部の内壁は、
下流側となる端部に形成された雄型接続部の外壁と比較
してやや大きな構造を有することによって、本構造体の
直線形U字溝への取り付けは非常に簡便である。すなわ
ち、使用される直線形U字溝の上流側の端部の内側に、
本構造体の下流側の雄型接続部を上方から載せ置くよう
にするか、或いは直線形U字溝の上流側端部にその形状
と嵌合し得る形状をなす本構造体の雄型接続部を嵌め込
むことで接続され得る。また、本構造体を直線形U字溝
の下流側端部に接続する場合においても、本構造体の上
流側の雌型接続部の内側に、直線形U字溝の下流側端部
を載せ置くか、或いは本構造体の雌型接続部に、その内
側形状と嵌合し得る形状をなす直線形U字溝の下流側端
部を嵌め込むことで接続され得る。このように雌型接続
部及び雄型接続部は、使用される直線形U字溝の端部と
嵌合構造を形成するので密着性も高く、接続部からの水
漏れの恐れが非常に少ないという利点を有する。また、
本構造体の雌型接続部及び雄型接続部の上端において、
外方へと延びる補強壁を形成し、この補強壁にリベット
を通す孔を複数個設けてなる態様も好ましい。これによ
って、もし嵌め込み後においてさらなる固定を必要とす
るのであれば、嵌め込み後、前記孔と、あらかじめ直線
形U字溝の対応する箇所、例えば補強壁に設けられた同
様の孔とを位置合わせし、リベットにて鋲着、固定する
ことが可能となる。
Further, one of the preferred embodiments of the present invention is to provide the flexible bellows portion having the above-mentioned shape,
And, on the upstream side and the downstream side of the bellows-like part, the female-type connecting part and the male-type connecting part, which are fitted to the ends of the linear U-shaped groove in which the corrugations are continuously formed in the longitudinal direction, are formed. It is a flexible structure that is formed integrally with and connected to. The bellows-like portion has a function of allowing the structure to be bent in an arbitrary direction as described above. Further, the female connecting portion and the male connecting portion which are integrally formed so as to be continuous with the bellows-like portion are applied in a U shape so that they can be fitted to each other when connecting with the linear U-shaped groove or with the structure. Each is shaped into a shape corresponding to the end of the groove. Then, the inner wall of the female connection portion formed at the end portion on the upstream side with respect to the flow of water is
By having a slightly larger structure than the outer wall of the male type connecting portion formed at the end portion on the downstream side, the attachment of this structure to the linear U-shaped groove is very simple. That is, inside the upstream end of the linear U-shaped groove used,
The male connection of the present structure is arranged so that the downstream male connection portion of the present structure is placed from above, or the upstream end of the linear U-shaped groove can be fitted to that shape. It can be connected by fitting parts. Even when the structure is connected to the downstream end of the straight U-shaped groove, the downstream end of the straight U-shaped groove is placed inside the upstream female connecting portion of the structure. The connection can be made by placing or by inserting the downstream end of the linear U-shaped groove having a shape that can be fitted to the inner shape of the female connection portion of the structure. In this way, since the female type connecting portion and the male type connecting portion form a fitting structure with the end portion of the linear U-shaped groove to be used, the adhesion is high and the risk of water leakage from the connecting portion is very small. Has the advantage. Also,
At the upper ends of the female connection portion and the male connection portion of the structure,
It is also preferable that a reinforcing wall extending outward is formed and a plurality of holes through which rivets are inserted are provided in the reinforcing wall. Thus, if further fixing is required after fitting, after fitting, align the hole with the corresponding location of the straight U-shaped groove in advance, for example, a similar hole provided in the reinforcing wall. , It is possible to fix and fix with rivets.

【0010】本発明の可撓性を有する構造体の別の態様
は、筒状体の長手方向に延びる頂部の一部又は全部が切
り欠かれた切り欠き筒状体であって、少なくともその一
部において、内外周壁の実質全体にわたって延びる山部
及び谷部が交互に該切り欠き筒状体の長手方向に連続形
成されることにより可撓性蛇腹状部を備えてなる構造の
ものである。切り欠き部の存在によって、使用中の本構
造体の内壁の状態、例えば落ち葉やゴミ詰まりの目視が
容易である。該可撓性蛇腹状部は断面略蹄鉄形状である
が、もちろん、本構造体を上下左右の任意の方向に彎曲
することは可能である。頂部の全部が切り欠かれている
構造である場合、その切り欠き部分の幅方向の長さは例
えば5ないし10cmであることが適当である。もちろ
ん、本構造体の埋設されるべき箇所の勾配が緩やかであ
って、水流が本構造体の外へと飛散するおそれが少ない
と考えられる場合であれば、切り欠き部分はより幅広の
構造をとっても構わない。また、複数の架け渡し材を切
り欠き部分の幅方向に適当箇所に備える構造をとること
は、可撓性蛇腹状部の頂部の剛性向上の面から好まし
く、例えば架け渡し材は、切り欠き部分を挟んで互いに
対向する内壁又は外壁にそれぞれリベット等で固定され
得る。なお、切り欠き部分が架け渡し材にて横架された
構造の可撓性蛇腹状部は、頂部の一部が切り欠かれた構
造の可撓性蛇腹状部の一例に過ぎず、成形の段階からあ
らかじめ切り欠かれた構造のものであってもよい。
Another aspect of the flexible structure of the present invention is a notched tubular body in which a part or all of the apex extending in the longitudinal direction of the tubular body is notched, and at least one of them is provided. In the section, the peaks and the troughs extending substantially over the entire inner and outer peripheral walls are alternately formed continuously in the longitudinal direction of the cut-out tubular body, so that the flexible bellows-like section is provided. Due to the presence of the cutout portion, it is easy to visually check the state of the inner wall of the structure during use, for example, fallen leaves and clogging of dust. The flexible bellows-shaped section has a horseshoe-shaped cross section, but of course, it is possible to bend the structure in any direction up, down, left or right. In the case of a structure in which the entire top is cut out, the widthwise length of the cutout is suitably 5 to 10 cm, for example. Of course, if the slope of the place where the structure should be buried is gentle and it is considered that the water flow is unlikely to splash outside the structure, the notch part should have a wider structure. It doesn't matter. In addition, it is preferable to have a structure in which a plurality of bridging members are provided at appropriate positions in the width direction of the cutout portion from the viewpoint of improving the rigidity of the top of the flexible bellows portion. They may be fixed to the inner wall or the outer wall facing each other with the rivet in between, respectively, with rivets or the like. Note that the flexible bellows-shaped portion having a structure in which the cutout portion is laterally bridged by a bridging material is merely an example of the flexible bellows-shaped portion having a structure in which a part of the top portion is cut out, and It may have a structure cut out in advance from the stage.

【0011】上述した切り欠き筒状体構造である可撓性
蛇腹状部を有する本構造体は、好ましくはその可撓性蛇
腹状部の上流側及び下流側に、波形が長手方向に連続形
成された直線形U字溝の端部と嵌合する雌型接続部及び
雄型接続部を、該蛇腹状部と連なって一体に成形され得
る。すでに述べたように、雌型接続部及び雄型接続部
は、使用される直線形U字溝の端部と嵌合構造をなすよ
う形成されるので密着性も高く、接続部からの水漏れの
恐れが非常に少ないという利点を有する。
In the present structure having a flexible bellows-like portion having the above-mentioned cut-out tubular body structure, preferably, the corrugations are continuously formed in the longitudinal direction on the upstream side and the downstream side of the flexible bellows-like portion. The female connection portion and the male connection portion that fit with the ends of the formed linear U-shaped groove can be formed integrally with the bellows portion in a continuous manner. As described above, since the female type connecting portion and the male type connecting portion are formed so as to form a fitting structure with the end portion of the linear U-shaped groove to be used, the adhesion is high and the water leakage from the connecting portion is high. It has the advantage that the risk of

【0012】接続部については、上述したように波形が
長手方向に連続形成された直線形U字溝の端部と本構造
体の雌型接続部又は雄型接続部を嵌合するのみの接続方
法であっても漏水することなしに十分に固定され得る
が、例えば地盤が緩く、埋設されたU字溝が比較的位置
ずれしやすい等の条件が過酷な土地での使用が必要な場
合においては、その嵌合部分に合成ゴム製のパッキン材
を装入した形態とし、接続した際の密着力をさらに高め
ることもできる。本発明において、前記パッキン材は、
本構造体の雄型接続部の外側表面に密着するような、雌
型接続部の内側表面に密着するような形状であると共
に、該接続部の左右の側壁部の上部まで届く長さを有す
る。該パッキン材の厚さは、0.5mm以下では耐久性
の点で十分とは言えず、5mm以上になると接続部の嵌
合性能が損なわれ始めることから、0.5mmないし5
mmの範囲内にあることが望ましい。前記パッキン材の
使用方法は非常に簡便で、その内側表面を雄型接続部の
外側表面にあてがって密着させ、前述したように、その
まま該雄型接続部を雌型接続部或いは直線形U字溝の接
続部に嵌め込むのみである。該パッキン材を使用するこ
との利点としては、本構造体と直線形U字溝もしくは本
構造体同士の接続部の密着性をさらに高めることによっ
て、接続された本構造体及び直線形U字溝もしくは本構
造体同士がより強固に固定されて安定度が高まると同時
に、該接続部からの水漏れの恐れを一層低減する等の好
ましい効果を導くことである。
As for the connection portion, as described above, a connection is made only by fitting the end portion of the linear U-shaped groove in which the corrugations are continuously formed in the longitudinal direction and the female connection portion or the male connection portion of the structure. Even if it is a method, it can be sufficiently fixed without leaking water, but when it is necessary to use it on land where the ground is loose and the embedded U-shaped groove is relatively easily displaced It is also possible to further increase the adhesive force when connecting by using a synthetic rubber packing material inserted into the fitting portion. In the present invention, the packing material is
The structure has such a shape as to be in close contact with the outer surface of the male connection portion of the structure, and in close contact with the inner surface of the female connection portion, and has a length reaching the upper portions of the left and right side wall portions of the connection portion. . If the thickness of the packing material is 0.5 mm or less, it cannot be said that the durability is sufficient, and if it is 5 mm or more, the fitting performance of the connecting portion begins to be impaired.
It is desirable to be in the range of mm. The method of using the packing material is very simple. The inner surface of the packing material is brought into close contact with the outer surface of the male connecting portion, and the male connecting portion is directly connected to the female connecting portion or the straight U-shape as described above. It is only fitted into the connecting part of the groove. The advantage of using the packing material is that the structure and the linear U-shaped groove connected by further increasing the adhesion between the structure and the linear U-shaped groove or the connecting portion between the structures. Alternatively, the present structures are more firmly fixed to each other to improve the stability, and at the same time, a preferable effect such as further reducing the risk of water leakage from the connection portion is introduced.

【0013】本発明の可撓性を有する構造体においてさ
らに好ましい態様の一つは、上述した構造の蛇腹状部
が、その内面の一の山部と対向する山部との間隔が、接
続されるべき直線形U字溝の水路幅よりもより長く、彎
曲使用されたとき該山部による水流の妨げが低減される
ように設計されていることを特徴とするものである。す
なわち、蛇腹状部を彎曲使用した際、折り畳まれる側と
なる山部の頂きが内方へとさらに突出すると、水の流れ
の妨げとなるが、上記の態様はそのような水流の妨げの
低減を図ったものである。かような山部の内方への突出
は、蛇腹状部の一の山部と対向する山部との間隔が、接
続されるべき直線形U字溝の水路幅よりも短い構造にお
いて顕著な現象であり、結果としてこの突出された部分
は水路を狭め、落ち葉やゴミの流れを妨げる等の弊害を
もたらす。それに対し、蛇腹状部の一の山部と対向する
山部との間隔が、接続されるべき直線形U字溝の水路幅
よりもより長い構造の蛇腹状部であれば、彎曲使用され
た場合においても、その折り畳まれる側における山部が
水流の妨げとなる程に内側に突出することがない。した
がって水流の妨げを軽減することとなり、その為、落ち
葉やゴミが突出した山部に引っかかって滞留してしまう
おそれも非常に少なくなる。
In a further preferred embodiment of the flexible structure of the present invention, the bellows-like portion having the above-mentioned structure is connected at a distance between one peak portion on the inner surface and the peak portion facing the bellows portion. It is characterized in that it is longer than the width of the straight U-shaped groove to be formed, and is designed so that the obstruction of the water flow due to the peaks is reduced when it is bent and used. That is, when the bellows part is bent, if the crest of the mountain part that is to be folded further protrudes inward, the flow of water is hindered. However, the above-described aspect reduces the hindrance of such water flow. Is intended. Such inward protrusion of the crests is remarkable in a structure in which the distance between the one crest of the bellows-shaped part and the opposite crest is shorter than the channel width of the straight U-shaped groove to be connected. This is a phenomenon, and as a result, the projecting portion narrows the water channel and causes adverse effects such as obstruction of fallen leaves and the flow of dust. On the other hand, if the bellows-shaped portion has a structure in which the distance between the one peak of the bellows-shaped portion and the opposite peak is longer than the channel width of the linear U-shaped groove to be connected, it is curved. Even in such a case, the mountain portion on the folded side does not project inward enough to obstruct the water flow. Therefore, the obstruction of the water flow is reduced, and therefore, the possibility that fallen leaves and dust may be caught and accumulated on the protruding mountain portion is extremely reduced.

【0014】本発明の可撓性を有する構造体に使用され
得る硬質合成樹脂としては、ポリエチレンの他、ポリ塩
化ビニル、ポリプロピレン、ポリエチレンテレフタレー
ト、ポリアミドが挙げられ、また不飽和ポリエステル等
にガラス繊維、炭素繊維、有機繊維などを含有させた繊
維強化樹脂も使用され得る。
Examples of the hard synthetic resin that can be used in the flexible structure of the present invention include polyethylene, polyvinyl chloride, polypropylene, polyethylene terephthalate, and polyamide. In addition, unsaturated polyester and the like include glass fiber, Fiber reinforced resins containing carbon fibers, organic fibers, etc. may also be used.

【0015】以上説明したように、本発明の可撓性を有
する構造体は、埋設箇所の状況に応じて種々の方向への
彎曲が可能であり、また直線形U字溝との接続箇所から
の水漏れのおそれも低いだけでなく、構造体内を流れる
水の外部への飛散を効果的に防止し得、かつ内外周壁に
作用する土圧荷重に対する剛性も非常に高いという利点
を有する。
As described above, the flexible structure of the present invention is capable of bending in various directions depending on the condition of the buried portion, and from the connecting portion with the linear U-shaped groove. In addition to the low possibility of water leakage, it is possible to effectively prevent the water flowing in the structure from being scattered to the outside, and the rigidity against earth pressure load acting on the inner and outer peripheral walls is very high.

【0016】[0016]

【実施例】図面を参照して本発明をさらに詳細に説明す
る。以下の実施例はいかなる場合も本発明を限定するも
のと解釈してはならない。
The present invention will be described in more detail with reference to the drawings. The following examples should not be construed as limiting the invention in any way.

【0017】(参考例図1に参考例として、可撓性を有する構造体1の斜視図
を示す 。ポリエチレンからなる可撓性を有する構造体1
は、筒状体であって内外周壁の実質全体にわたって延び
る山部2及び谷部3が交互に筒状体4の長手方向に連続
形成されることにより、断面略円形状の可撓性蛇腹状部
5を備えている。さらに、可撓性を有する構造体1の上
流側及び下流側にはフランジ部6及び張出し部7が、該
蛇腹状部5と連なって一体に成形されている。可撓性を
有する構造体1は、かような蛇腹状部5を備えることに
よって、任意の角度で彎曲使用することが可能な構造を
とっている。また、蛇腹状部5は筒状体であって、その
内部に水流路が全体的に覆われて形成されるので、可撓
性を有する構造体1内を流れる水が外部へと飛散してし
まうことを効果的に防止している。さらに、かかる筒状
体構造をとることにより、蛇腹状部5に対して種々の方
向から土圧荷重が作用しても、断面略U字形状の蛇腹状
部と比較して剛性が非常に高く、もって蛇腹状部5の局
部変形又はねじれ変形が有効に防止され得る。可撓性を
有する構造体1と使用するU字溝との接続は以下のとお
り、容易になし得る。すなわち、可撓性を有する構造体
1のフランジ部6と、接続されるU字溝にあらかじめ設
けてなる対応するフランジ部とを互いに接触させ、同時
に、可撓性を有する構造体1と使用するU字溝のうち、
上流側となる方の張出し部7をもう一方の張出し部7上
に重ね合わせた後、フランジ部6に穿設されたリベット
を通す孔8と、使用するU字溝の対応する箇所に設けら
れた孔を重ね合わせ、リベットによって鋲着するのみで
十分に固定される。
Reference Example FIG. 1 is a perspective view of a flexible structure 1 as a reference example.
Indicates . Flexible structure 1 made of polyethylene
Is a tubular body, and the ridges 2 and the valleys 3 extending substantially over the entire inner and outer peripheral walls are alternately formed continuously in the longitudinal direction of the tubular body 4 to form a flexible bellows having a substantially circular cross section. It comprises a part 5. Further, on the upstream side and the downstream side of the flexible structure 1, a flange portion 6 and an overhanging portion 7 are formed integrally with the bellows-like portion 5 in a continuous manner. The flexible structure 1 has such a bellows-like portion 5 so that the structure 1 can be bent and used at an arbitrary angle. Further, since the bellows-like portion 5 is a tubular body and the water flow passage is entirely covered and formed inside, the water flowing in the flexible structure 1 is scattered to the outside. It effectively prevents it from happening. Further, by adopting such a tubular body structure, even if earth pressure loads act on the bellows-shaped portion 5 from various directions, the rigidity is extremely high as compared with the bellows-shaped portion having a substantially U-shaped cross section. Therefore, local deformation or twisting deformation of the bellows-like portion 5 can be effectively prevented. The connection between the flexible structure 1 and the U-shaped groove to be used can be easily made as follows. That is, the flange portion 6 of the flexible structure 1 and the corresponding flange portion provided in advance in the U-shaped groove to be connected are brought into contact with each other, and at the same time, the flexible structure 1 is used. Of the U-shaped groove,
After overlapping the projecting portion 7 on the upstream side with the projecting portion 7 on the other side, the holes 8 for passing the rivets formed in the flange portion 6 and the U-shaped groove to be used are provided at corresponding positions. The holes are overlapped and riveted to secure them.

【0018】(実施例) 本実施例においては、好ましい態様の一つである可撓性
を有する構造体9を挙げて説明する。可撓性を有する構
造体9の斜視図である図2、可撓性を有する構造体9の
平面図である図3及び可撓性を有する構造体9の側面図
である図4において示すように、ポリエチレン樹脂から
なる可撓性を有する構造体9は、雄型接続部10及び雌
型接続部11とその間に形成される蛇腹状部12からな
り、これらが連なって一体成形された構造をとってい
る。蛇腹状部12は、参考例における可撓性を有する構
造体1の蛇腹状部5と同様の構造である。本実施例にお
いては、雄型接続部10及び雌型接続部11は、接続さ
れる直線形U字溝の端部の形状に対応して、凹条部13
と凸条部14とが交互に波形をなして可撓性の構造体9
の長手方向へと連続形成されると共に、凹条部13及び
凸条部14の上端において垂直壁15を形成し、さらに
垂直壁15の上端から外方へ向かって延びる補強壁16
を形成する構造を示す。凹状部13と凸状部14の波形
成形により雄型接続部10及び雌型接続部11の剛性の
向上が図られ、垂直壁15を設けることによって、埋設
の際に土砂が上端まで均一に充填されるよう設計されて
いる。また補強壁16はU字溝の形状に対応して成形さ
れているものであるが、雄型接続部10及び雌型接続部
11の上部が周囲の土圧荷重によってねじれ変形してし
まうのを防止する機能を有している。雄型接続部10及
び雌型接続部11の特徴としては、水流に対して上流側
となる雌型接続部11の内壁は、雄型接続部10の外壁
よりもごく僅かに大きい寸法となるよう成形されてお
り、可撓性を有する構造体9同士を接続する場合におい
て、一方の可撓性を有する構造体9の雄型接続部10が
他方の可撓性の構造体9の雌型接続部11の内部に嵌め
込まれる仕組みとなした点である。接続する場合におい
ては、雄型接続部10を雌型接続部11の内側に嵌め込
めばよい。また、雄型接続部10及び雌型接続部11
は、それら接続部と同様の構造をなす直線形U字溝の端
部と嵌合し得る形状に成形されているので、該U字溝へ
の接続も容易である。すなわち、可撓性を有する構造体
9の雌型接続部11に、その内側形状と嵌合し得る形状
をなす直線形U字溝の下流側端部を嵌め込むことによ
り、又は直線形U字溝の上流側端部に、その形状と嵌合
し得る可撓性を有する構造体9の雄型接続部10を嵌め
込むことにより接続され得る。以上のように、雄型接続
部10及び雌型接続部11は嵌合しやすい形状をなし、
接続された場合は密着性も高いのでその嵌合部分からの
水漏れを効果的に防止することができる。その上、その
接続作業も非常に簡便で、特殊な熟練を要することもな
い。可撓性を有する構造体9の雄型接続部10及び雌型
接続部11との間には、参考例における蛇腹状部5と同
様の蛇腹状部12が連なって一体成形されている。本実
施例においては、蛇腹状部12は、図3のA−A線にお
ける断面図である図5に示すように、断面略円形状構造
を有すると共に、谷部17の底18及び山部19の頂き
20がそれぞれ鋭くに屈曲して成形しているが、蛇腹状
部としての機能を損なわない範囲において、底18及び
頂き20が各々ゆるやかに彎曲する構造であってもよい
し、又は鋭く屈曲する形状とゆるやかに彎曲する形状を
任意の順列で形成する構造であっても何ら差し支えな
い。なお、山部19の頂き20は、水流の真っ直ぐの流
れを妨げない程度に可撓性を有する構造体9の内方へと
やや突出する構造をとっても構わない。また、図2及び
図3に示すように、雄型接続部10及び雌型接続部11
の上端に形成された補強壁16には、リベットを通す孔
21が穿設されているが、上述したように可撓性の構造
体9と直線形U字溝、もしくは可撓性を有する構造体9
同士を嵌合した場合には、それぞれの孔は互いに重なる
よう成形されているので、孔同士を位置合わせする必要
が無く、嵌合後そのままリベットにて鋲着することがで
きる。孔21は必要に応じて現場にて、ドリル等によっ
て穿設しても良いが、作業性の面から成形時にあらかじ
め設けておくことが好ましい。図6は図3と同様に可撓
性の構造体9の平面図であるが、可撓性を有する構造体
9の彎曲した形状を示している。図6から分かるよう
に、蛇腹状部12の山部19と対向する山部19’との
間隔が、接続されるべき直線形U字溝の水路幅Lよりも
より長くなるよう設計されている。この構造は水流の妨
げとなるおそれが少ないという利点を有する。可撓性を
有する構造体1は、その蛇腹状部12が筒状体を形成し
ている為、勾配が緩やかな埋設箇所のみならず、勾配が
急な埋設箇所においても、曲り切れなくなった水が構造
体1の外へと飛散してしまうことを完全に防止し得る。
また、蛇腹状部12は言わば、その左右の側壁部のそれ
ぞれの上部が連続して一体に結合されているような構造
である為、蛇腹状部12に対して土圧荷重が作用したと
しても、その内方への局部変形又はねじれ変形を非常に
有効に防止し得る。
(Embodiment 1 ) In this embodiment, a flexible structure 9 which is one of the preferred embodiments will be described. As shown in FIG. 2, which is a perspective view of the flexible structure 9, FIG. 3 which is a plan view of the flexible structure 9, and FIG. 4, which is a side view of the flexible structure 9. In addition, the flexible structure 9 made of polyethylene resin is composed of a male type connecting portion 10 and a female type connecting portion 11 and a bellows-like portion 12 formed therebetween, and a structure integrally formed by connecting them. I am taking it. The bellows-like portion 12 has the same structure as the bellows-like portion 5 of the flexible structure 1 in the reference example . In the present embodiment, the male connecting portion 10 and the female connecting portion 11 correspond to the shapes of the end portions of the linear U-shaped grooves to be connected, and the concave stripe portion 13 is formed.
And the ridges 14 are alternately corrugated to form a flexible structure 9.
A vertical wall 15 is formed at the upper ends of the concave streak portion 13 and the convex streak portion 14, and the reinforcing wall 16 extends outward from the upper end of the vertical wall 15.
The structure which forms is shown. Rigidity of the male connection portion 10 and the female connection portion 11 is improved by corrugating the concave portion 13 and the convex portion 14, and by providing the vertical wall 15, the earth and sand are evenly filled up to the upper end during burying. Is designed to be. Further, although the reinforcing wall 16 is formed corresponding to the shape of the U-shaped groove, it is possible to prevent the upper portions of the male connecting portion 10 and the female connecting portion 11 from being twisted and deformed by the surrounding earth pressure load. Has a function to prevent. The male connecting part 10 and the female connecting part 11 are characterized in that the inner wall of the female connecting part 11 on the upstream side with respect to the water flow is slightly larger than the outer wall of the male connecting part 10. When connecting the structures 9 that are molded and have flexibility, the male connection portion 10 of one flexible structure 9 is connected to the female connection of the other flexible structure 9. The point is that the structure is fitted inside the portion 11. When connecting, the male connecting portion 10 may be fitted inside the female connecting portion 11. In addition, the male connecting portion 10 and the female connecting portion 11
Is molded into a shape that can be fitted to the end of the linear U-shaped groove having the same structure as those of the connecting portions, so that connection to the U-shaped groove is easy. That is, by fitting the downstream end of the linear U-shaped groove having a shape that can be fitted to the inner shape of the female connecting portion 11 of the flexible structure 9 or by inserting the linear U-shaped portion. It can be connected to the upstream end of the groove by fitting the male connecting portion 10 of the flexible structure 9 that can fit the shape thereof. As described above, the male connecting portion 10 and the female connecting portion 11 have a shape that facilitates fitting,
When connected, the adhesion is high, so that water leakage from the fitting portion can be effectively prevented. Moreover, the connection work is very simple and does not require special skill. Between the male connecting portion 10 and the female connecting portion 11 of the flexible structure 9, a bellows-like portion 12 similar to the bellows-like portion 5 in the reference example is continuously formed and integrally formed. In the present embodiment, the bellows-like portion 12 has a substantially circular cross-sectional structure as shown in FIG. 5, which is a cross-sectional view taken along the line AA of FIG. Each of the tops 20 and the tops 20 is formed by being bent sharply, but the bottom 18 and the tops 20 may each be gently curved as long as the function as the bellows-like portion is not impaired. It does not matter even if it is a structure in which the curved shape and the gently curved shape are formed in an arbitrary order. The top 20 of the mountain portion 19 may have a structure that slightly protrudes inward of the flexible structure 9 to the extent that it does not hinder the straight flow of the water flow. In addition, as shown in FIGS. 2 and 3, the male connecting portion 10 and the female connecting portion 11 are connected.
The reinforcing wall 16 formed at the upper end of the is provided with a hole 21 through which a rivet is inserted. As described above, the flexible structure 9 and the linear U-shaped groove, or a flexible structure. Body 9
Since the holes are formed so as to overlap each other when they are fitted to each other, it is not necessary to align the holes with each other, and they can be riveted directly with the rivets after the fitting. The holes 21 may be formed in the field by a drill or the like if necessary, but it is preferable to provide them in advance at the time of molding from the viewpoint of workability. FIG. 6 is a plan view of the flexible structure 9 as in FIG. 3, but shows the curved shape of the flexible structure 9. As can be seen from FIG. 6, the distance between the peak portion 19 of the bellows-shaped portion 12 and the opposite peak portion 19 ′ is designed to be longer than the water channel width L of the straight U-shaped groove to be connected. . This structure has the advantage of being less likely to obstruct the flow of water. Since the bellows-like portion 12 of the flexible structure 1 forms a tubular body, not only the buried portion having a gentle slope but also the buried portion having a steep slope can be prevented from being bent. Can be completely prevented from scattering outside the structure 1.
In addition, since the bellows-like portion 12 is, so to speak, structured such that the upper portions of the left and right side wall portions thereof are continuously and integrally coupled, even if earth pressure load acts on the bellows-like portion 12. The inward local deformation or twisting deformation can be very effectively prevented.

【0019】(実施例) 本発明の別の態様の一つである可撓性を有する構造体2
2を挙げて説明する。可撓性を有する構造体22の斜視
図である図7、可撓性を有する構造体22の平面図であ
る図8及び図8のB−B線における断面図である図9に
おいて示すように、ポリエチレン樹脂からなる可撓性を
有する構造体22は、筒状体の長手方向に延びる頂部2
3の全部が切り欠かれた切り欠き筒状体24であって内
外周壁の実質全体にわたって延びる山部25及び谷部2
6が交互に該切り欠き筒状体24の長手方向に連続形成
されることにより可撓性蛇腹状部27を備え、かつ、そ
の上流側及び下流側に雄型接続部10及び雌型接続部1
1とを可撓性蛇腹状部27と連なって一体に成形してな
る構造をとっている。雄型接続部10及び雌型接続部1
1は実施例における可撓性を有する構造体9の雄型接
続部10及び雌型接続部11と同様の構造である。可撓
性蛇腹状部27の頂部23には、切り欠き部分28が形
成されているものの、可撓性を有する構造体22が任意
の角度で彎曲使用することが可能であり、さらに、その
埋設箇所が急な勾配を有していたとしても、切り欠き部
分28は幅狭となるよう成形されている為、頂部23か
らの水の飛散は十分効果的に抑えられる構造である。
Example 2 A flexible structure 2 which is one of other aspects of the present invention.
2 will be described. As shown in FIG. 7, which is a perspective view of the flexible structure 22, FIG. 8 which is a plan view of the flexible structure 22, and FIG. 9 which is a cross-sectional view taken along line BB of FIG. 8. The flexible structure 22 made of polyethylene resin has a top portion 2 extending in the longitudinal direction of the tubular body.
3 is a cut-out tubular body 24 in which all are cut out, and the mountain portion 25 and the valley portion 2 extend over substantially the entire inner and outer peripheral walls.
6 are alternately formed continuously in the longitudinal direction of the cut-out tubular body 24 to include the flexible bellows portion 27, and the male connection portion 10 and the female connection portion are provided on the upstream side and the downstream side thereof. 1
1 and 1 are connected to the flexible bellows portion 27 and integrally molded. Male connection 10 and female connection 1
1 has the same structure as the male connection portion 10 and the female connection portion 11 of the flexible structure 9 in the first embodiment. Although the notch portion 28 is formed on the top portion 23 of the flexible bellows portion 27, the flexible structure 22 can be bent and used at an arbitrary angle, and further, the buried portion thereof can be embedded. Even if the portion has a steep slope, the cutout portion 28 is formed so as to have a narrow width, so that the water splash from the top portion 23 is sufficiently effectively suppressed.

【0020】(実施例) 本実施例は、頂部23の一部が切り欠かれた本構造体の
一つとして、実施例における可撓性を有する構造体2
2において、その切り欠き部分28の幅方向に、ポリエ
チレン製の架け渡し材29を備えてなる態様を示す。可
撓性を有する構造体22の斜視図である図10、可撓性
を有する構造体22の平面図である図11及び図8のC
−C線における断面図である図12において示すよう
に、架け渡し材29は長方形の平板であり、切り欠き部
分28をまたいでその両端がリベット30によって頂部
23に鋲着されている。その他の構造は実施例と同様
である。架け渡し材29の存在によって、可撓性蛇腹状
部27の剛性が向上し、可撓性蛇腹状部27の側方から
作用する土圧荷重によって切り欠き部28が閉じられて
しまう可能性がより低まる。
(Embodiment 3 ) In this embodiment, the flexible structure 2 in Embodiment 2 is used as one of the present structures in which a part of the top portion 23 is cut out.
2 shows a mode in which a bridging material 29 made of polyethylene is provided in the width direction of the cutout portion 28. 10 which is a perspective view of the flexible structure 22, FIG. 11 which is a plan view of the flexible structure 22, and C of FIG.
As shown in FIG. 12, which is a cross-sectional view taken along the line C, the bridging member 29 is a rectangular flat plate, and straddles the cutout portion 28, and both ends thereof are tacked to the top portion 23 by the rivets 30. Other structures are similar to those of the second embodiment. The presence of the bridging material 29 improves the rigidity of the flexible bellows portion 27, and the cutout portion 28 may be closed by the earth pressure load acting from the side of the flexible bellows portion 27. It gets lower.

【0021】(実施例) 本発明の可撓性を有する構造体のもう一つの態様は、図
13に示す可撓性を有する構造体31である。ポリエチ
レン樹脂からなる可撓性を有する構造体31は、実施例
3における構造体22と同様に可撓性蛇腹状部32の頂
部の全部が切り欠かれているが、その切り欠きは水平に
為され、さらにはその切り欠き部分がより幅広となるよ
うに成形されている点で構造体22と異なる。可撓性を
有する構造体31は切り欠き部分が広口であるが、勾配
が緩やかで、内壁を流れる水が穏やかとなる埋設箇所に
おいては、頂部からの水の飛散防止の効果を十分に発揮
し得る。また、可撓性を有する構造体31内を流れる水
が落ち葉やその他のゴミ等により妨げられていないかを
容易に目視し、また可撓性を有する構造体31の内壁を
清掃することもたやすい構造である。
(Embodiment 4 ) Another embodiment of the flexible structure of the present invention is a flexible structure 31 shown in FIG. In the flexible structure 31 made of polyethylene resin, all of the tops of the flexible bellows-like portions 32 are cut out as in the structure 22 in the third embodiment, but the cutout is horizontal. The structure 22 is different from the structure 22 in that the cutout portion is formed to be wider. The flexible structure 31 has a wide mouth at the cutout portion, but at the buried portion where the gradient is gentle and the water flowing through the inner wall is gentle, the effect of preventing the splashing of water from the top is sufficiently exerted. obtain. Further, it is possible to easily visually check whether the water flowing in the flexible structure 31 is obstructed by fallen leaves or other dust, and to clean the inner wall of the flexible structure 31. It has an easy structure.

【0022】可撓性を有する構造体9、22及び31に
は、現場の状況に応じて、例えば図14に示すような長
形構造を有するパッキン材33を使用することもでき
る。パッキン材33はその内側表面34が該雄型接続部
10の外側表面に密接するよう、断面略U字形状の形状
に成形されている。パッキン材33の取付けは特別な手
法を用いることはなく、例えば図4に示すように、凹状
部13の外側表面にパッキン材33の内側表面34を貼
り付けるようにして装着する。図4において、パッキン
材33は一の凹条部13に装着されているのみである
が、それ以外の凹条部13にパッキン材33を複数個同
時装着することももちろん可能である。かかるパッキン
材33を使用することによって、雄型接続部10と雌型
接続部11との密着性がより一層高まり、それによって
嵌合部から水漏れを起こす可能性がより一層低くなる。
For the flexible structures 9, 22 and 31, a packing material 33 having an elongated structure as shown in FIG. 14, for example, may be used depending on the situation of the site. The packing material 33 is formed in a U-shaped cross section so that the inner surface 34 of the packing material 33 is in close contact with the outer surface of the male connecting portion 10. No special method is used to attach the packing material 33. For example, as shown in FIG. 4, the packing material 33 is attached by attaching the inner surface 34 of the packing material 33 to the outer surface of the concave portion 13. In FIG. 4, the packing material 33 is only attached to one recessed portion 13, but it is of course possible to simultaneously install a plurality of packing materials 33 on the other recessed portions 13. By using such packing material 33, the adhesiveness between the male connection portion 10 and the female connection portion 11 is further enhanced, and thereby the possibility of water leakage from the fitting portion is further reduced.

【0023】[0023]

【発明の効果】以上に説明したように、本発明の可撓性
を有する構造体は、自由自在に彎曲できるので、埋設箇
所の状況に応じて左右及び上下の種々の方向へ彎曲した
設置が可能である。また、隣接U字溝との接続箇所にお
いて水漏れを引き起こすおそれも低い。のみならず、構
造体内を流れる水の外部への飛散を効果的に防止し、か
つ、周囲の土圧荷重に対する剛性も非常に高い。
As described above, since the flexible structure of the present invention can be flexed freely, it can be flexibly installed in various directions such as left and right and up and down depending on the situation of the buried portion. It is possible. In addition, there is a low risk of causing water leakage at the connection point with the adjacent U-shaped groove. Not only that, it effectively prevents the water flowing in the structure from being scattered to the outside, and has a very high rigidity against the surrounding earth pressure load.

【図面の簡単な説明】[Brief description of drawings]

【図1】参考例としての可撓性を有する構造体1の斜視
図である。
FIG. 1 is a perspective view of a flexible structure 1 as a reference example .

【図2】本発明の実施例の可撓性を有する構造体9の
斜視図である。
FIG. 2 is a perspective view of a flexible structure 9 according to the first embodiment of the present invention.

【図3】本発明の実施例の可撓性を有する構造体9の
平面図である。
FIG. 3 is a plan view of a flexible structure 9 according to the first embodiment of the present invention.

【図4】本発明の実施例の可撓性を有する構造体9の
側面図である。
FIG. 4 is a side view of the flexible structure 9 according to the first embodiment of the present invention.

【図5】図3のA−A線における断面図である。5 is a cross-sectional view taken along the line AA of FIG.

【図6】本発明の実施例の可撓性を有する構造体9を
彎曲した場合の平面図である。
FIG. 6 is a plan view when the flexible structure 9 according to the first embodiment of the present invention is curved.

【図7】本発明の実施例の可撓性を有する構造体22
の斜視図である。
FIG. 7 is a flexible structure 22 according to a second embodiment of the present invention.
FIG.

【図8】本発明の実施例の可撓性を有する構造体22
の平面図である。
FIG. 8 is a structure 22 having flexibility according to a second embodiment of the present invention.
FIG.

【図9】図8のB−B線における断面図である。9 is a cross-sectional view taken along the line BB of FIG.

【図10】本発明の実施例の可撓性を有する構造体2
2の斜視図である。
FIG. 10 is a structure 2 having flexibility according to a third embodiment of the present invention.
It is a perspective view of FIG.

【図11】本発明の実施例の可撓性を有する構造体2
2の平面図である。
FIG. 11 is a structure 2 having flexibility according to a third embodiment of the present invention.
It is a top view of FIG.

【図12】図11のC−C線における断面図である。12 is a cross-sectional view taken along the line CC of FIG.

【図13】本発明の実施例の可撓性を有する構造体3
1の斜視図である。
FIG. 13 is a structure 3 having flexibility of Example 4 of the present invention.
It is a perspective view of FIG.

【図14】構造体9、22及び31に使用され得るパッ
キン材33の斜視図である。
FIG. 14 is a perspective view of packing material 33 that may be used for structures 9, 22 and 31.

【符号の説明】[Explanation of symbols]

1、9、22、31 可撓性を有する構造体 2、1
9、25 山部 3、17、26 谷部 4 筒
状体 5、12、27、32 蛇腹状部 6 フ
ランジ部 7 張出し部 8 孔 10 雄型接続部 11 雌型接続部 13
凹条部 14 凸条部 15 垂直壁 16
補強壁 18 底 20 頂き 21
孔 23 頂部 24 切り欠き筒状体 28
切り欠き部分 29架け渡し材 30 リベット 33
パッキン材
1, 9, 22, 31 Flexible structure 2, 1
9, 25 Crests 3, 17, 26 Valleys 4 Cylindrical bodies 5, 12, 27, 32 Bellows 6 Flange 7 Overhang 8 Hole 10 Male connection 11 Female connection 13
Recessed ridge 14 Convex ridge 15 Vertical wall 16
Reinforcement wall 18 Bottom 20 Top 21
Hole 23 Top 24 Notched tubular body 28
Notch part 29 Bridge material 30 Rivet 33
Packing material

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開2002−294850(JP,A) 実開 昭61−157794(JP,U) (58)調査した分野(Int.Cl.7,DB名) E02B 11/00 F16L 11/11 F16L 27/10 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-2002-294850 (JP, A) Actual development Sho 61-157794 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) E02B 11/00 F16L 11/11 F16L 27/10

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】波形が長手方向に連続形成された上流側の
直線形U字溝と下流側の該直線形U字溝とを接続する為
に用いられる、水流の向きを変える位置に設置使用され
る構造体であって、 硬質合成樹脂又は繊維強化樹脂からなる筒状体であっ
て、少なくともその一部において、内外周壁の実質全体
にわたって延びる山部及び谷部が交互に該筒状体の長手
方向に連続形成されることにより、可撓性蛇腹状部を備
え、 かつ、該蛇腹状部の上流側及び下流側に、波形が長手方
向に連続形成された直線形U字溝の端部と嵌合する雌型
接続部及び雄型接続部を、該蛇腹状部と連なって一体に
成形してなることを特徴とする、直線形U字溝との接続の為の 可撓性を有する構造体。
1. An upstream side where corrugations are continuously formed in the longitudinal direction
To connect the linear U-shaped groove and the linear U-shaped groove on the downstream side
Used, a structure that is installed and used in a position to change the water flow direction, a cylindrical body made of a hard synthetic resin or fiber reinforced resin, at least in part, extends throughout substantially the inner and outer peripheral wall Since the peaks and the valleys are alternately formed continuously in the longitudinal direction of the tubular body, a flexible bellows portion is provided, and the corrugations are provided in the longitudinal direction on the upstream side and the downstream side of the bellows portion. to the female connection portion and the male connection portion of the end portion and the fitting of the continuously formed straight U-shaped groove, and characterized by being molded integrally continuous with the bellows-like portion, straight U A flexible structure for connection with the groove .
【請求項2】波形が長手方向に連続形成された上流側の
直線形U字溝と下流側の該直線形U字溝とを接続する為
に用いられる、水流の向きを変える位置に設置使用され
る構造体であって、 硬質合成樹脂又は繊維強化樹脂からなる筒状体の長手方
向に延びる頂部の一部又は全部が切り欠かれた切り欠き
筒状体であって、少なくともその一部において、内外周
壁の実質全体にわたって延びる山部及び谷部が交互に該
切り欠き筒状体の長手方向に連続形成されることによ
り、可撓性蛇腹状部を備え、 かつ、該蛇腹状部の上流側及び下流側に、波形が長手方
向に連続形成された直線形U字溝の端部と嵌合する雌型
接続部及び雄型接続部を、該蛇腹状部と連なって一体に
成形してなることを特徴とする、直線形U字溝との接続の為の 可撓性を有する構造体。
2. An upstream side where corrugations are continuously formed in the longitudinal direction.
To connect the linear U-shaped groove and the linear U-shaped groove on the downstream side
A structure that is used at a position that changes the direction of the water flow and is used, where a part or all of the top part extending in the longitudinal direction of a cylindrical body made of hard synthetic resin or fiber reinforced resin is cut away. A notched tubular body, in which at least a part thereof, peaks and troughs extending substantially over the entire inner and outer peripheral wall are alternately formed continuously in the longitudinal direction of the notched tubular body, whereby a flexible bellows is formed. And a female connection portion and a male connection portion that are fitted to the ends of the straight U-shaped groove in which the corrugations are continuously formed in the longitudinal direction and that are provided on the upstream side and the downstream side of the bellows-shaped portion. A flexible structure for connection with a linear U-shaped groove , characterized by being formed integrally with the bellows-like portion.
JP2002315940A 2002-10-30 2002-10-30 Flexible structure Expired - Fee Related JP3498247B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002315940A JP3498247B1 (en) 2002-10-30 2002-10-30 Flexible structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002315940A JP3498247B1 (en) 2002-10-30 2002-10-30 Flexible structure

Publications (2)

Publication Number Publication Date
JP3498247B1 true JP3498247B1 (en) 2004-02-16
JP2004150109A JP2004150109A (en) 2004-05-27

Family

ID=31944630

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002315940A Expired - Fee Related JP3498247B1 (en) 2002-10-30 2002-10-30 Flexible structure

Country Status (1)

Country Link
JP (1) JP3498247B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110959087A (en) * 2017-08-01 2020-04-03 瓦尔蒙特工业股份有限公司 Irrigation sheath assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110959087A (en) * 2017-08-01 2020-04-03 瓦尔蒙特工业股份有限公司 Irrigation sheath assembly
EP3662187A4 (en) * 2017-08-01 2021-04-07 Valmont Industries, Inc. Irrigation boot assembly

Also Published As

Publication number Publication date
JP2004150109A (en) 2004-05-27

Similar Documents

Publication Publication Date Title
JPS645175Y2 (en)
US8801049B2 (en) Pipe coupling system and method
US7185894B2 (en) Watertight corrugated pipe gasket
CN1282844C (en) Pipe having a water-tight in-line bell
JP3498247B1 (en) Flexible structure
JP2003336244A (en) Flexible u-shaped gutter
JPH0611076A (en) Pressure proof helical corrugated pipe
CN215978128U (en) Flexible mortise and tenon water drainage groove
JP2018003276A (en) Water-conveyance structure and construction method for the same
US20220389676A1 (en) Ditch and canal liner assembly
US5184649A (en) Pressure-resistant helical corrugated pipe
JP3779037B2 (en) Strip for existing pipe lining
JPH0478875B2 (en)
JP3511177B1 (en) Fitting for U-shaped groove
JP6192949B2 (en) Method for installing grooved body connecting body and grooved body connecting body
KR200381763Y1 (en) Connect sleeve structure for water pipe
CN210117785U (en) Drainage ditch
CN219548184U (en) Drainage tank attach fitting
JPS6013145A (en) Flexible joint structure of water using structure
JP5054432B2 (en) Socket for firewood
JP4780739B2 (en) Joint structure of secondary concrete products
KR950001658Y1 (en) Drainage pipe
CN219888970U (en) Visual sleeve joint for connecting corrugated pipes
GB2106156A (en) Gutter system
CN217653438U (en) Double-rubber-ring type straight-wall buckle joint

Legal Events

Date Code Title Description
S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20081205

Year of fee payment: 5

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20081205

Year of fee payment: 5

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20091205

Year of fee payment: 6

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101205

Year of fee payment: 7

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111205

Year of fee payment: 8

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111205

Year of fee payment: 8

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121205

Year of fee payment: 9

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121205

Year of fee payment: 9

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131205

Year of fee payment: 10

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees